Pratt & Whitney powers X-47B system UPI.com 29 (UPI) -- Pratt and Whitney reports its F100-PW-220U engine and exhaust system successfully powered the X-47B Unmanned Combat Air System for US Navy. The flight of the tailless, autonomous aircraft lasted about 30 minutes last week at Edwards Air ... Pratt & Whitney Powers Flight of Second Northrop Grumman X-47B Unmanned Combat ...Sacramento Bee los 3 artículos informativos » |
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